Bard Access Systems, Inc.

Daniel Pett

Eric W Lindekugel

Ralph Lee Sonderegger

Daniel B Blanchard

Joe Spataro

Jason Edie

Thomas D Ware

Embodiments disclosed herein are directed to an intraosseous access system configured to confirm access to a medullary cavity. The system includes a driver housing, an access system including a drive train, a needle assembly rotatably coupled to the access system, and an aspiration system. The needle assembly can include a needle defining a lumen and an obturator disposed therein. The aspiration system can include a syringe or a vacutainer, coupled to the obturator. Sliding one of a plunger or a vacutainer proximally can withdraw the obturator from the needle lumen and place a vacuum in fluid communication with the needle lumen to draw a fluid flow therethrough. A portion of the aspiration system can rotate along with the needle assembly. Withdrawing the obturator can place the obturator within the syringe or the vacutainer mitigating needle stick injuries. If the medullary cavity has not been accessed, the obturator can be replaced.

Aspiration apparatus for intraosseous access system

An intraosseous access system, including a needle configured to drill into bone via rotation of the needle, and a driver. The driver can be configured to impart rotational power to the needle. The driver can include a power converter and a first power source connected to the power converter. The system can further include a second power source external to the driver and selectively connectable to the driver. A method of drilling through a bone includes providing the intraosseous access system, applying rotational power to the needle, and placing the needle in contact with the bone. The method can further include coupling the second power source to the power converter so that power from the second power source is combined with power from the first energy source.

Intraosseous modular power

An angled intraosseous access system including a guide block and/or a guide plate is disclosed. The system includes a driver having a body, and including a needle assembly rotatably coupled thereto, the needle assembly defining a needle axis. One of the guide block or the guide plate is configured to engage a skin surface and align the needle assembly axis at a predetermined angle relative to the skin surface to access the medullary cavity at the predetermined angle. Advantageously, the angled needle of the intraosseous access system can mitigate pain during infusion and mitigate backwalling.

Angled intraosseous access system

An intraosseous access device can include a constant-torque spring assembly disposed in a housing, a drive shaft extending from the housing, and an intraosseous needle coupled to the drive shaft configured to provide intraosseous access to a medullary cavity of a patient. A method of using an intraosseous access device can include inserting a distal end of the intraosseous needle through skin at an insertion site of a patient and applying a contacting force to a bone beneath the insertion site with the distal end of the intraosseous needle. The contacting force can initiate a winding of a metal ribbon of the constant-torque spring assembly from an output spool onto a storage spool, thereby initiating drilling rotation of the intraosseous needle. The method can further include drilling through the bone until the intraosseous needle enters a medullary cavity of the patient.

Constant-torque intraosseous access devices and methods thereof

Devices and methods for an autovance intraosseous device. The autovance intraosseous device can include a trigger activated system or pressure activated system that causes a needle to advance distally for a predetermined distance. The predetermined distance ensures a needle tip extends through the bone cortex, to access the medullary cavity, without penetrating a far wall of the medullary cavity. The advancement can be driven by a spring based system or an electric motor.

Autovance feature of an intraosseous device

Disclosed herein are medical device systems, and methods thereof, for automatically detecting access to a medullary cavity. Embodiments include intraosseous access systems with sensing obturators, configured to detect a change in modality, e.g. pressure, oxygen saturation, electrical impedance, etc. at a distal tip thereof. Signals can be transmitted to a control logic that can modify the activation of a driver in response. Signals can be transmitted by way of wired or wireless communication. In an embodiment, signals can be transmitted through conductive polymer material that forms the obturator and allows the obturator to be flexible enough to mitigate accidental needle stick injuries.

Intraosseous device including a sensing obturator

An intraosseous access system, including an access assembly having a needle configured to drill into bone via rotation of the needle and a driver. The driver can include a housing, a power converter configured to impart rotational power to the needle, a first power source coupled to the power converter, and a second power source selectively coupleable to the power converter, where the second power source is configured to be disposed at least partially external to the housing. A method of drilling through a bone includes providing the intraosseous access system, applying rotational power to the needle, and placing the needle in contact with the bone. The method can further include coupling the second power source to the power converter so that power from the second power source is combined with power from the first energy source.

Constant-torque intraosseous access devices and methods thereof are disclosed. An intraosseous access device can include a constant-torque spring assembly disposed in a housing, a drive shaft extending from the housing, and an intraosseous needle coupled to the drive shaft configured to provide intraosseous access to a medullary cavity of a patient. A method of such an intraosseous access device can include inserting a distal end of the intraosseous needle through skin at an insertion site of a patient; applying force to bone at the insertion site with the distal end of the intraosseous needle, which starts winding a metal ribbon of the constant-torque spring assembly from an output spool onto a storage spool, thereby starting rotation of the intraosseous needle; and drilling through the bone until the intraosseous needle enters a medullary cavity of the patient, thereby achieving intraosseous access with the intraosseous access device.

Disclosed herein are intraosseous access devices having various operating mechanisms, as well as methods of the intraosseous access devices. For example, an intraosseous access device includes, in some embodiments, a constant-torque spring assembly, a drive shaft, an intraosseous needle, and an interlock mechanism. The constant-torque spring assembly is disposed in a housing, and the drive shaft extends from the housing. The drive shaft is coupled to the constant-torque spring assembly. The intraosseous needle is coupled to the drive shaft. The intraosseous needle is configured for drilling through bone and providing intraosseous access to a medullary cavity of a patient. The interlock mechanism is configured to prevent rotation of the intraosseous needle and the drilling therewith until the interlock mechanism is disengaged.

Growing community of inventors

Sandy, UT, United States of America

Daniel Pett